{"paper":{"title":"Search for $B^0 \\to \\pi^- \\tau^+ \\nu_\\tau$ with hadronic tagging at Belle","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"hep-ex","authors_text":"A. Abdesselam, A. Bozek, A. Chen, A. Drutskoy, A. Frey, A. Garmash, A. Ishikawa, A. Kuzmin, A. M. Bakich, A. Moll, A. Rostomyan, A. Sibidanov, A. Sokolov, A. Vossen, A. Zupanc, B. Bhuyan, Belle Collaboration: P. Hamer, B. G. Cheon, B. G. Fulsom, B. Golob, B. Pal, C. H. Wang, C. Kiesling, C. Oswald, C. Pulvermacher, C. Schwanda, C. Van Hulse, D. Cinabro, D. Dutta, D. Getzkow, D. Greenwald, D. H. Lee, D. Joffe, D. Liventsev, D. M. Asner, D. Matvienko, D. \\v{C}ervenkov, D. Y. Kim, E. Barberio, E. Kato, E. Nakano, E. Ribe\\v{z}l, E. Solovieva, E. Won, F. Simon, G. B. Mohanty, G. Inguglia, G. Pakhlova, G. Schnell, G. Varner, H. Aihara, H. B. Jeon, H. Farhat, H. Hayashii, H. K. Moon, H. Li, H. Miyake, H. Miyata, H. Park, H. Sahoo, H. Yamamoto, I. Adachi, I. Badhrees, I. Danko, I. Jaegle, I. S. Lee, J. Biswal, J. B. Kim, J. Dalseno, J. Dingfelder, J. E. Fast, J.-G. Shiu, J. Haba, J. Hasenbusch, J. H. Kim, J. Libby, J. Rauch, J. S. Lange, J. Stypula, J. Yamaoka, K. Arinstein, K. Chilikin, K. Cho, K. Hayasaka, K. H. Kang, K. Inami, K. Kinoshita, K. K. Joo, K. Miyabayashi, K. Senyo, K. T. Kim, K. Trabelsi, L. E. Piilonen, L. Li, L. Pes\\'antez, L. Santelj, M. Bra\\v{c}ko, M. Danilov, M. J. Kim, M. Masuda, M. Nakao, M. Nayak, M. Petri\\v{c}, M. Ritter, M. Shapkin, M. Stari\\v{c}, M. Uchida, M.-Z. Wang, N. Dash, N. Gabyshev, N. K. Nisar, O. Schneider, P. Goldenzweig, P. Kody\\v{s}, P. Kri\\v{z}an, P. Krokovny, P. Lukin, P. Pakhlov, P. Urquijo, P. Vanhoefer, P. Wang, R. Ayad, R. Gillard, R. Glattauer, R. Itoh, R. Mizuk, R. Mussa, R. Pestotnik, S. Al Said, S. Eidelman, S. H. Kim, S. Korpar, S. Mohanty, S. Nishida, S. Ogawa, S. Okuno, S. Sandilya, S. Uehara, S. Uno, S. Yashchenko, T.-A. Shibata, T. Aushev, T. E. Browder, T. Ferber, T. Hara, T. Iijima, T. Julius, T. Kawasaki, T. K. Pedlar, T. Kuhr, T. Nanut, T. Sanuki, T. Sumiyoshi, V. Babu, V. Chekelian, V. Chobanova, V. Gaur, V. Savinov, V. Shebalin, V. Trusov, V. Vorobyev, V. Zhilich, V. Zhulanov, W.-S. Hou, Y. Choi, Y. Iwasaki, Y. J. Kim, Y.-J. Kwon, Y. Li, Y. Liu, Y. M. Goh, Y. Sakai, Y. Seino, Y.-S. Sohn, Y. Teramoto, Y. Unno, Y. Usov, Y. Watanabe, Y. Yook, Z. Dole\\v{z}al, Z. Dr\\'asal, Z. Natkaniec, Z. P. Zhang","submitted_at":"2015-09-22T09:25:11Z","abstract_excerpt":"We search for the process $B^0 \\to \\pi^- \\tau^+ \\nu_\\tau$ using the full Belle data set of $711\\,{\\rm fb}^{-1}$, corresponding to $772 \\times 10^6 B\\bar{B}$ pairs, collected at the $\\Upsilon(4S)$ resonance with the Belle detector at the KEKB asymmetric-energy $e^+ e^-$ collider. We reconstruct one $B$ meson in a hadronic decay and search for the $B^0 \\to \\pi^- \\tau^+ \\nu_\\tau$ process in the remainder of the event. No significant signal is observed and an upper limit of $\\mathcal{B}(B^0 \\to \\pi^- \\tau^+ \\nu_\\tau) < 2.5 \\times 10^{-4}$ is obtained at the $90\\%$ confidence level."},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1509.06521","kind":"arxiv","version":2},"verdict":{"id":null,"model_set":{},"created_at":null,"strongest_claim":"","one_line_summary":"","pipeline_version":null,"weakest_assumption":"","pith_extraction_headline":""},"references":{"count":0,"sample":[],"resolved_work":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57","internal_anchors":0},"formal_canon":{"evidence_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"author_claims":{"count":0,"strong_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"builder_version":"pith-number-builder-2026-05-17-v1"}